Complete characterization of pruning waste from the lechero tree (Euphorbia laurifolia L.) as raw material for biofuel

Velázquez‐Martí, Borja; Gaibor-Cházvez, J.; Niño, Zulay; Narbona-Sahuquillo, S.

doi:10.1016/j.renene.2018.06.050

Cited by 8 publications

(5 citation statements)

References 26 publications

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“…Comparing the results for the calorific values of the obtained biochar (19–23 MJ∙kg −1 ) with the calorific values for wood, it can be noted that they are higher or at least comparable. The calorific value of wood ranges from 17.4 to 18.5 MJ∙kg −1 [ 51 , 52 , 53 ]. Compared with solid fossil fuels, the calorific value of the obtained torrefaction from goldenrod is similar.…”

Section: Discussionmentioning

confidence: 99%

Physicochemical Properties of Biochar Produced from Goldenrod Plants

et al. 2022

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Torrefaction is one of the methods of thermal treatment of biomass, which allows obtaining a product of better quality in the form of biochar. The aim of the paper was to analyze the possibility of using goldenrod (Solidago canadensis, Solidago gigantea) for the production of biochar. The torrefaction process involved the vegetative and generative parts as well as the whole plant at temperatures of 250 °C and 275 °C, for 3 h. Next, the physicochemical properties of the raw material and biochar were determined, namely moisture content, ash content, volatile matter content, calorific value, and heat of combustion. The bulk density of raw biomass and biochar was also determined. It was found that after biomass torrefaction, the ash content, calorific value, and heat of combustion increased, while volatile matter content decreased. It has been observed that in both the case of raw biomass and biochar, the plant species and the sampled parts have a significant impact on the ash content, volatile matter content, calorific value, and heat of combustion.

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Section: Discussionmentioning

confidence: 99%

Physicochemical Properties of Biochar Produced from Goldenrod Plants

et al. 2022

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“…In some cases, it may also be possible to include secondary sources of fuel from other operations, such as cuttings from tree pruning. One example in Ecuador found that lechero trees ( Euphorbia laurifolia L.), although perhaps exhibiting faster growth rates than most urban UK trees, produced an average of 9.95 kg of wood and leaf pruning waste per tree (Velázquez‐Martí, Gaibor‐Cházvez, Niño‐Ruiz, & Narbona‐Sahuquillo, ).…”

Section: Discussionmentioning

confidence: 99%

How much heat can we grow in our cities? Modelling UK urban biofuel production potential

et al. 2019

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Biofuel provides a globally significant opportunity to reduce fossil fuel dependence; however, its sustainability can only be meaningfully explored for individual cases. It depends on multiple considerations including: life cycle greenhouse gas emissions, air quality impacts, food versus fuel trade‐offs, biodiversity impacts of land use change and socio‐economic impacts of energy transitions. One solution that may address many of these issues is local production of biofuel on non‐agricultural land. Urban areas drive global change, for example, they are responsible for 70% of global energy use, but are largely ignored in their resource production potential; however, underused urban greenspaces could be utilized for biofuel production near the point of consumption. This could avoid food versus fuel land conflicts in agricultural land and long‐distance transport costs, provide ecosystem service benefits to urban dwellers and increase the sustainability and resilience of cities and towns. Here, we use a Geographic Information System to identify urban greenspaces suitable for biofuel production, using exclusion criteria, in 10 UK cities. We then model production potential of three different biofuels: Miscanthus grass, short rotation coppice (SRC) willow and SRC poplar, within the greenspaces identified and extrapolate up to a UK‐scale. We demonstrate that approximately 10% of urban greenspace (3% of built‐up land) is potentially suitable for biofuel production. We estimate the potential of this to meet energy demand through heat generation, electricity and combined heat and power (CHP) operations. Our findings show that, if fully utilized, urban biofuel production could meet nearly a fifth of demand for biomass in CHP systems in the United Kingdom's climate compatible energy scenarios by 2030, with potentially similar implications for other comparable countries and regions.

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“…El enorme flujo de residuos de las podas generados diariamente y la presencia de contaminantes contenidos en estos residuos, los tornan potenciales agentes contaminantes, afectando el suelo, fuentes de agua dulce, el aire y llegando a causar impactos a diversos ecosistemas. Por ejemplo, los árboles de Ficus benjamina generan alrededor de 5 a 6 kg de residuos de hojas secas por día en época de verano (Kulkarni et al, 2019), y su poda genera alrededor de 16 kg de residuos (Pérez-Arévalo & Velázquez-Martí, 2018), mientras que la poda del árbol lechero (Euphorbia laurifolia L.) genera alrededor de 9,95 kg de residuos (Velázquez-Martí et al, 2018). Otros estudios mencionan que la poda urbana de un árbol genera en promedio 376,4 kg de residuos (Maccarini et al, 2020).…”

Section: Residuos Lignocelulósicos Urbanosunclassified

Conversión de residuos lignocelulósicos urbanos en fuente de bioenergía mediante carbonización hidrotérmica

Vásquez Llanos,

Barturén Quispe,

Sánchez Purihuaman

et al. 2024

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The hydrothermal carbonization process has attracted the attention of the academic and scientific community as an emerging and ecological technology for the transformation of urban lignocellulosic waste into a source of bioenergy in solid form (hydrochar),liquid, and gases. This review addresses understanding the properties and potential use of these wastes as a source of bioenergy. The physicochemical and energetic properties of these wastes are analyzed, as well as the operating parameters that influencetheir transformation. Furthermore, new perspectives are presented on future challenges related to the potential use of this waste and the carbonization process. The sustainable conversion of these urban wastes into a source of bioenergy will contribute toreducing dependence on fossil fuels, minimizing greenhouse gas emissions, ensuring efficient urban waste management, and developing a circular bioeconomy.

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Complete characterization of pruning waste from the lechero tree (Euphorbia laurifolia L.) as raw material for biofuel

Cited by 8 publications

References 26 publications

Physicochemical Properties of Biochar Produced from Goldenrod Plants

Physicochemical Properties of Biochar Produced from Goldenrod Plants

How much heat can we grow in our cities? Modelling UK urban biofuel production potential

Conversión de residuos lignocelulósicos urbanos en fuente de bioenergía mediante carbonización hidrotérmica

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